renames `isActive` variable to `isCurrentPage`
bumped to v0.4.31
re-run tests with updates to grunt-prettify task, and with new tests for pages collections and lodash in yaml from matter.
adds grunt.config.process to pageContext so that lodash templates are processed. previously, lodash templates were only processed for the context of the "current page" but were left un-processed for the "other pages".
bumped to 0.4.32
reverting grunt.config.process function that caused an unintended change in how context was processed. republishing 0.4.32.
Merge branch 'master' of https://github.com/assemble/assemble

Conflicts:
	package.json
passing in params to the engine so they can be passed along to other helpers
0.4.33